Thanks for the info, fitzsteve.
WOW! I'm getting nearly 7 MIPS with the 28mhz accelerator in my A1200. If I'm reading SYSInfo right my pimped A1200 is 12 times faster than a standard A600.
I suppose it's too much to hope for that this better speed would be equally noticable in any and all 3d style games (sims and texture mapping) but I have already seen this is not the case. Is that just down to poor programming? Fighter Bomber seems to chug & stutter - maybe I am just forgetting just how slow it was and this is still actually an improvement?!!